Background noise of satellite-to-ground quantum key distribution
Er-Long Miao, Zheng‐Fu Han, Shunsheng Gong, Tao Zhang, Diao Da-Sheng, Guo Guang-Can · New Journal of Physics · 2005
The influence of background light on satellite-to-ground free-space quantum key distribution (QKD) is investigated. By comparing the number of noise photons to that of the signal photons per pulse, the technical requirements for a practical system are evaluated. We show that satellite-to-ground QKD is feasible with currently available technology even under full moonlight.